:root{--bg:#0d1117;--surface:#161b22;--surface-2:#1e2530;--surface-3:#242c38;--border:#262d38;--text:#e6edf3;--text-muted:#7d8fa0;--text-secondary:#9090a8;--accent:#00cfff;--accent-dim:rgba(0,207,255,.15);--success:#27c47e;--warning:#d29922;--danger:#e5534b;--pro:#4493f8;--premium:#d29922;--free:#7d8fa0;--radius:8px;--tier-hot:#ff6b35;--tier-hot-bg:rgba(255,107,53,.12);--tier-active:#f5a623;--tier-active-bg:rgba(245,166,35,.12);--tier-early:#4a9eff;--tier-early-bg:rgba(74,158,255,.12)}[data-theme=light]{--bg:#f0f4f8;--surface:#fff;--surface-2:#e8f0f7;--surface-3:#dce8f2;--border:#c8d8e8;--text:#1a1f2e;--text-muted:#5a6a7e;--text-secondary:#4a5568;--accent:#0095c2;--accent-dim:rgba(0,149,194,.12);--success:#1a9e67;--warning:#b07a10;--danger:#c0392b;--tier-hot:#dc2626;--tier-hot-bg:rgba(220,38,38,.1);--tier-active:#ca8a04;--tier-active-bg:rgba(202,138,4,.1);--tier-early:#16a34a;--tier-early-bg:rgba(22,163,74,.1)}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe 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